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Hydrate porous medium synthesis device and permeability tensor test system and method thereof

A technology for porous media and synthesis devices, which is used in permeability/surface area analysis, measurement devices, preparation of samples for testing, etc. requirements, etc.

Active Publication Date: 2021-10-08
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The first purpose of the present invention is to provide a hydrate porous media synthesis device to solve the problem that the permeability test equipment in the prior art cannot meet the requirements of obtaining a comprehensive permeability tension based on the same hydrate sediment sample. Quantitative Testing Requirements for Technical Issues
[0007] The second purpose of the present invention is to provide a hydrate permeability tensor test system to solve the problem that the permeability test equipment in the prior art cannot meet the requirements of obtaining comprehensive permeability based on the same hydrate sediment sample. Rate Tensor Test Requirements Technical Issues
[0008] The third purpose of the present invention is to provide a permeability tensor test method to solve the problem that the permeability test method in the prior art cannot meet the requirements of obtaining a comprehensive permeability tensor based on the same hydrate sediment sample. Technical issues of testing requirements

Method used

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  • Hydrate porous medium synthesis device and permeability tensor test system and method thereof
  • Hydrate porous medium synthesis device and permeability tensor test system and method thereof
  • Hydrate porous medium synthesis device and permeability tensor test system and method thereof

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Embodiment 1

[0068] see Figure 1 to Figure 4 and combine Figure 5 As shown, this embodiment provides a hydrate porous media synthesis device 41 including a body and multiple flow mechanisms.

[0069] In the main body, there is a synthesis space for synthesizing saturated methane solution and soil sample into hydrate porous media. The saturated methane solution fills the pores of the soil sample. Under certain temperature and pressure conditions, the two combine to form hydrate porous media. medium.

[0070] The flow-through mechanism includes an inflow channel and an outflow channel opened on the body along the predetermined flow direction, and the inflow channel and the outflow channel of each flow-through mechanism are respectively arranged on both sides of the synthesis space, so that the test fluid can flow along the predetermined flow direction. The test fluid flows through the inflow channel, synthesis space and outflow channel in sequence, so that the test fluid performs a perme...

Embodiment 2

[0092] Embodiment 2 provides a hydrate porous media permeability tensor testing system, which includes the hydrate porous media synthesis device in Embodiment 1, and the technical characteristics of the hydrate porous media synthesis device disclosed in Embodiment 1 are also Applicable to this embodiment, the technical features of the hydrate porous media synthesis device disclosed in Embodiment 1 will not be described repeatedly.

[0093] combine Figure 1 to Figure 4 and see Figure 5 As shown, the hydrate porous media permeability tensor test system provided in this embodiment includes a hydrate porous media synthesis device, a test fluid supply device, a data acquisition device, a data processing device, a saturated methane aqueous solution supply device, and a temperature control liquid supply device. device, pressure control liquid supply device and air tightness detection device.

[0094] In the following, the above-mentioned components of the hydrate porous media per...

Embodiment 3

[0124] Embodiment 3 provides a method for testing the permeability tensor of hydrate porous media. This embodiment uses the hydrate porous media synthesis device in Embodiment 1 or the hydrate porous media permeability tensor testing system in Embodiment 2. The technical features of the hydrate porous media synthesis device disclosed in Example 1 and the hydrate porous media permeability tensor test system disclosed in Example 2 are also applicable to this embodiment. The hydrate porous media synthesis device disclosed in Example 1 The technical features and the technical features of the disclosed hydrate porous media permeability tensor testing system in Embodiment 2 will not be described repeatedly.

[0125] combine Figure 1 to Figure 5 As shown, the method for testing the permeability tensor of hydrate porous media provided in this embodiment includes the following steps:

[0126] Step S100, generating hydrate porous media: synthesizing hydrate porous media in the synthes...

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Abstract

The invention relates to the technical field of hydrate tests, in particular to a hydrate porous medium synthesis device and a permeability tensor test system and a method thereof. The hydrate porous medium synthesis device comprises a body and a plurality of through-flow mechanisms, a synthesis space is formed in the body; each through-flow mechanism comprises an inflow channel and an outflow channel which are formed in the body in the preset through-flow direction, and the preset through-flow directions of the multiple through-flow mechanisms are different in pairs. The inflow channel and the outflow channel of each through-flow mechanism are arranged on the two sides of the synthesis space respectively, so that test fluid sequentially flows through the inflow channel, the synthesis space and the outflow channel. The hydrate porous medium permeability tensor test system comprises the hydrate porous medium synthesis device. The hydrate porous medium synthesis device is adopted in the hydrate porous medium permeability tensor test method. The hydrate porous medium synthesis device, the permeability tensor test system and the permeability tensor test method provide a structural basis for obtaining permeability tensors of the hydrate porous medium along multiple directions.

Description

technical field [0001] The invention relates to the technical field of hydrate testing, in particular to a hydrate porous media synthesis device, a permeability tensor testing system and a method. Background technique [0002] Natural gas hydrate is an ice-like cage-like crystal formed by hydrocarbon molecules such as methane and ethane and water in a high-pressure and low-temperature environment. It is widely distributed in the permafrost and deep-sea sediments. 1m under standard condition 3 Natural gas hydrate can be decomposed into nearly 164m 3 methane gas and 0.83m 3 Water is a clean energy with high energy density. [0003] Since 2007, a number of deep-sea drilling has been carried out in the Shenhu area of ​​the South China Sea, successfully obtaining high-saturation hydrates in porous media such as muddy silt and silt; The first trial production of natural gas hydrate was carried out in the Shenhu sea area, and the continuous gas test was ignited for 60 days, wit...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N1/28
CPCG01N15/0806G01N1/28
Inventor 周剑张路青韩振华
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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